Device for testing plumbing and pipes.



GL W. HEILAND. DEVICE NoN TESTING PLUMBING AND ms. APPLICATION FILED MAY 21, 1907. @0359?3, Patented Nov. 17, 1908.

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G. W. HEILAND. DEX/'1GB FOR TESTING PLUMBING .AND PIPES.

APPLICATION FILED MAY 21, 1907y L r a 903,973. Patemed. bmw'. l?, i908 2 SHEETS-SHEET 2 mercury when the mercul the range of rassure under which the pipes may be teste A s lit ring 21 surroundm the guard 14 is use for the purpose of sli ing u or down to the height of the rnercuryl plain y indicating the .distance the mercury has fallen.

tive ferrules 13. A metal jam washer 23 in; terposed between the packing and the ferrule' serves merely to revent iction between the packing and t e errules, while the device is being put together. i

The upper reservoir or cup 12, of globular shape is used for receiving the overowing column reaches the upper end of the tube 1t is provided with a nip le 24 screwed into the wall of the cup. T isnipple extends to a point near the center of the hollow chamber 25 of said cup and has a bore 26 through which the air can escape. Owing to the peculiar design yof the overflow cup no mercury can be spilled out of the same regardless what posltion the device may take. To further insure against spilling of the mercury and to regulate .the escape of air through the bore 26 a washer 27 of telt or other suitable crous material is counter s 'unk into the.

inner end of the nipple 24.

To guide the mercury in the tube -7 and thus prevent the development of air bubbles in the columna wire 28 is inserted in said tube extending from the bottom of the mercury cup up to the overflow cup. l

The mercury cup 1 has as before mentioneda second nipple 3 extending from the bottom of the cup to a point near the top of the same. The object of this nipple is to allow the introduction of an air pressure into the hollow chamber 10 for which urd pose it is provided with a bore 29 w ich bore is in connection with the air channel 30.

rlhe peculiar construction of the mercury cup with both its nip les prevents the mercury from 'being spillied out through said channel which-,Irwiden's into an outlet 31 provided with a female thread to receive the tube 32 which is adapted to .connect the mercury cup with the pipes to be tested. A filling screw 33 is provided at one side of the mercury cup for letting in the mercury. The said air channel 30 communicates 'with the bore 39 Fig. 2 of an air valve consisting of a tubular casting 35 screwedinto the projection 41 of the mercury cup 1., having a seat 42 for the pointed end of a threaded valve spindle 40 screwed into the female threads of the tubular castings, anv air channel 38 and a hose end 36fhaving a .bore 37 communieating withV said air channel. 'lhe valve is essere the pipes: Acu shaped vessel 46 is screwed Y into the Wall of the tube and has an opening 47 through which ether can be poured into the tube. A valve screw 48' is provided for closing said opening after the introduction of the ether. ln order to prevent said fluid from iiowing back into the mercury chamber where it, as before mentioned, would cause damage, the tube 32 is bent in shape of a sin le turn of a coil forming a kind of trap 85 49 1n the trade known as a slphon.

v The operation of the device is as follows: After the mercury cup has been filled with mercury to a level indicated by the iilling ,serew and the device' has been tightly connested to the 'pipes to be tested the ether .screw 48 is removed andether poured into 'the cup 46,' whereupon the screw is replaced.

The hose end 36 of the device is now connected to an air pump by means of a rubber hose, the air valve is opened by turning the wheel 43 and air is pumped into the device and the pipes until the mercury in tbe tube ,7 reaches the height which corresponds to the pressure'for which said pipes shall `"be tested. The air pressure forces the cth/er into the plumbing where it evaporates. The air valve is now shut off and the mercury column observed. .If any leak exists in the plumbing the mercury will fall more or less rapidl and the extent of this leak can be judge location of the leak is then `detected by the smell of the evaporated ether escaping through the leak.

To prevent leaks in the device itself packings 50 and 51'are employed to make perfectly tight connections between the mercury cup 1 and the detachable nipples 2 and These nipples could be cast in one piecewith the mercury cup but the arrangement shown by the rate of said falling. The

is preferred as it facilitates the casting as we l as the cleaning of the device. For the last named reason the bore 29 of the hipp'k 3 is extended. to the bottom of the nipple where it is closed by the cleaning out screw 52.

lFrom the abcvedescription ofone embodiment oiz my invention and the acccmpanying drawings illustrating the same 4it will be seen .that said embodiment fulfilsall the requirements set forth. llhuswade vice is obtained which is not easily mped,

dueto the material used for the mercury protected, where said tube cannot intossid tui suine is slip oii' troni tbe reservoirs due to tbc solid manner in wliicli it is coni'iected to the saine, wliere no u'iercury een escupe owing to tiie peculiar trap-like construction ot the mercury Aand overflow i'eseiW'Oirs their nipples and tube, and tlie'uianner in vfliicli the wit-li where finally tbe volatile iiuid cannot enter tlie mercury cup and tube due to the provision ot the ciber trap or siplion.

As many cli-anges could be iliade in the construction and many apparently widelu diiierent embodiments.oit my invention designed witliout departing troni tlio pe thereof, l intend that all matter-contained in the above (le iotion or sliown in tne acconiliianying di ugs sliull be interpreted illustrative nierely of oiieretive einbodinient ci my' invention and not in a limiting `Wliat claim is t l.' In a device 'tor testing a A iping system, the combination of s pair ot reseiwfoirs, one upper and one lower, transparent tube uniting' seid reservoirs. a nipple in sind upper reservoir extending from tbe wall ot said reserif'oirfto s poi it neer the center of the saine, a bore in said nipple und a recess in tbe saine conne-ted to said bore,`c.,nd a packing ot' pori inateriul positioned in said recess udupteo to erc'ury troni esco wing but adopted uit to pass tliroi said bore.

ln n device for tf .i 'j pipiin system, the coiubinatirl a nfserifiir af ipted to contain nieren y. be connected to said reservoir, a nip iably connected to said reservoir in troni tire upper the bottoni oi to all on near Ying a bore forming; lan-i5- o'f said tube and ry to ascend bly connected iz'ozn the bote tbe seine and t introdiwtion ot' :in cir tlie-sauie, sind .ul-pp zi' continuation ot iw adapted :to

,tippV "l said reservoir und externen@ toen to :i point neer tbe top et udspted to per pressure ini, .i cuijy up into a 'l tbe combine iu L i, unil f; ssisf i connected incinte, tiie iotez' reseiwoir bei continu mercury tube ss s column, vI'illing tdi to mercury wb u the i q"the,zipper endettb; Y y in/,ff ijoni tbe top ou? .nf 4,point near e be oui ing a bore iornnngf bore ot `tbe' transparent mercury to poss up i sir pressure exerted spied to op into tbe reservoir o eriio'wing eifcury column reaches .L 1" 3 a Le descend tlie mercury in said reservoir, a nipple escendinc from the bottom ot said reservoir to a point near-tbe top of tl'ie saine and baring' a bore permitting air pressure to be intro* i'luced into said reservoir.

i, lu a device for testing o piping system, tlie combination of a reservoir adapted to contain mercury, a tube ascending from said reservoir, ineens adapted to allow the mercury to ascend into said tube when an air pressure is exerted upon its surface, a tube adapted to connect said reservoir with tbe piping' system to be tested, means adflpted to permit introduction ot' a volatile iiuid into said tube, said tube being bent so as to torni one turn ot' a coil located between said {ini-'5l introducing -ineans and the reservoir so as to prevent the iiuid from entering-said reservoir, and means for introducing an air pressure into said reservoir and said tube,

said means being located between the reser-` .being` adaptedto receive any overowing mercury from seid tube, one end otl said tube being surrounded and protected by a jackettroin the itunes of tlie ether, means for introducing en air pressure into said lower reservoir, a tube liav'ing a portion formed in u coil for connecting said lower reservoir wit-li the piping Lsystem undei` test, and means toi' introducing` etlier fumes into said liipingsystem,

t3. in a device for testing a piping system, tlie combination of s lower reservoir having a detachable nipple descendintroni tbe top to a point near tbe bottoni ot the seine, aan upper reservoir of globular shape, a detacl1- able nipple connected thereto and ending near the center ot said upper reservoir, said nipple having* a bote to' allow airto escape and ia recess at tl'ie inner end thereof, a porous packing positioned in saidi recess adapt- ,continuation of tbe bore insnid tube, a fer? rule surrounding each end of said tube/,packing positioned between seid ferrule and itsl seat, a guard for said tube 'rotatably mounted in said terrines, a ring slidebly mounted upon said guard, a `nipple ascending from 4tie bottoni to a point near the top of said :lower reservoir detacliably connected tliere.-

to and adapted to proyide a connection between tlie saine end the piping system lto be tested,fa tube bent so esto form one turn of hose-end adapted to leeeive a tube from imv 10` v a coil and detechably connected to said lower ai): reservoir, a cup attached to said tube on the side of the Coil away -fromthe reservoilj, said cup havmg a borev eonneetingthe same with. dstud tube, seid last 'amednpple having a bore communicating with the bore of the tube, and a valve attaohedto and communicating with said. lower reservoir having a,

Sipne) at New -York ety in thefcolintyl of New York and State of New York this 7th dayvof Ma A.' D.'19,07. f

' GJ URGE W. HEILAND.

v Witnesses:

-. LEWIS J DooLmLE,

PAUL R. HEILAND'. 

